THEN AND NOW: Here's what the 'Mean Girls' cast is up to 13 years later

In honor of the moment Aaron Samuels asked Cady Heron, played by Lindsay Lohan, what day it was on October 3, fans of the 2004 movie have taken the opportunity to unofficially dub the date "Mean Girls Day."

It's the perfect day to rewatch the hilarious comedy and quote the most memorable lines.

Here's what the cast has been up to in the 13 years since the movie was released:

1/

Lindsay Lohan was already an established star before playing new girl Cady Heron.

"The limit does not exist."
Paramount Pictures

Lohan's first film role was as a child actress in "The Parent Trap." Before "Mean Girls," she was in the Disney Channel movies "Life-Size" and "Get a Clue" and continued in other Disney hits "Freaky Friday" and "Confessions of a Teenage Drama Queen."

2/

Her career has since had some ups and downs, but her most recent role is on the forthcoming British comedy series "Sick Note."

Lohan at the Firenze4ever 14th Edition Party in 2017.
Stefania D'Alessandro/Getty Images for LuisaViaRoma

The same year "Mean Girls" came out, Lohan released a debut album. Some run-ins with the law, including charges of driving under the influence and cocaine possession, as well as some stints in rehab slowed her career.

3/

Rachel McAdams rose to fame as mean girl Regina George.

"Boo, you whore."
Paramount Pictures

She graduated with a theater degree from Canada's York University in 2001. Her Hollywood film debut was in "The Hot Chick," where she starred alongside Rob Schneider and Anna Faris.

4/

The actress was nominated for an Oscar for "Spotlight" and her most recent projects include "Doctor Strange" and "Disobedience."

McAdams at the 2017 Toronto International Film Festival.
Brian de Rivera Simon/Getty Images

She's also well known for starring in "The Notebook," Guy Ritchie's "Sherlock Holmes," and was on the second season of "True Detective."

5/

Lacey Chabert had some of the most memorable lines as Gretchen Wieners.

Fey on a 2017 episode of "The Tonight Show Starring Jimmy Fallon."
Jamie McCarthy/Getty Images for NBC

She's a two-time Golden Globe winner for "30 Rock," which she created and starred on. Her film roles include "Date Night," "Sisters," and "Whiskey Tango Foxtrot."

23/

Tim Meadows played principal Ron Duvall.

"Hell, no. I did not leave the South Side for this."
Paramount Pictures

He began his career with a 10-season stint on "Saturday Night Live."

24/

His most recent roles include voicing a character on "Son of Zorn," starring on "The Goldbergs," and guest starring on "Brooklyn Nine-Nine."

Meadows at the 2016 Comic-Con.
Dave Mangels/Getty Images

His many comedic roles include voicing a character on "Bob's Burgers" and starring in "Trainwreck," "Grown Ups," and "Walk Hard: The Dewey Cox Story."

25/

Amy Poehler was "cool mom" Mrs. George.

"There are no rules in the house. I'm not like a regular mom, I'm a cool mom."Paramount Pictures

Poehler was known for "Saturday Night Live" and starred in the cult favorite "Wet Hot American Summer" before starring alongside "SNL" friend Tina Fey in "Mean Girls."

26/

Poehler won a Golden Globe for her hilarious turn as Leslie Knope on "Parks and Recreation" and reprised her "Wet Hot American Summer" role on Netflix's sequel series to the original movie "Wet Hot American Summer: Ten Years Later."

Poehler at the 2017 premiere of "The House."
Neilson Barnard/Getty Images

She has also guest starred on "Difficult People" and acted alongside Will Ferrell in "The House."

27/

Ana Gasteyer briefly appeared as Cady's mom.

"This is the fertility vase of the Ndebele tribe. Does that mean anything to you."
Paramount Pictures

She was another "Saturday Night Live" alum who starred in the movie.

28/

She's currently starring on the comedy series "People of Earth."

Gasteyer at the 2017 San Diego Comic-Con.
Dia Dipasupil/Getty Images

She's had roles on "Curb Your Enthusiasm," "Suburgatory," "The Goldbergs," and "Lady Dynamite."

29/

Neil Flynn was best known as the janitor on "Scrubs" when he played Cady's dad.

"Are they not supposed to be let out when they're grounded?"
Paramount Pictures

He also starred in movies including "Rookie of the Year" and "Anchorman" and voiced a character on "Clone High."